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.W. J. PATTERSON AND R. M. BICKLEY COALflLEANlNG APPARATUS.--APPucAT|onrn. E0 MAR, 51'. 1919.

' Patented Aug. 12,1919.

3 SHiETS-SHEET l.

W. J. PATTERSON AND R. M. BICKLEY.

COALCLEANING APPARATUS. APPLICATION FILED MAR. 5. $919.

1,312,867. Patented Aug. '12, 1919.

3 SHEETS-SHEET 2.

W. J.- PATTERSON AND R. M. BICKLEY.

COAL CLEANING APPARATUS.

. I APPLICATION FILED MAR-5.1919. v 1 3 1 2, 867 Patented Aug. 12, 1919.

3 SHEETS-SHEET a.

UNITED STATES PATENT- o FioE;

WILLIAM J'. PKTTERSON AND ROSS MI. BICKLEY, OF PITTSBURGH, PENNSYLVANIA,

ASSIGNOBS T0 HEYL & PATTERSON, INC OI PITTSBURGH, PENNSYLVANIA, A COBF-PORATION OF PENNSYLVANIA.

COAIFCLEANING Renews."

'1,312,eea.

To all whom it may concern:

Be it known that we, WiLLiAM J. PATTER- SON and Ross M. BICKLEY,citizens of the containan unusually high percentage ofrefuse such asstone or slate, due to carelessness of the miner in loading said cars.It is necessary to call the miners attention to this refuse so as todiscourage the practice of sending out dirty coal. Where cars arehoisted from the mine to the tipple on selfdumping cages the identity ofany particuthe coal dumped from the car, and said chute lar car is lostas soon as it is dumped unless some provision is made for diverting thecoal for inspection. I

In the cleaning of coal itis found that the greater part of the easilyremovable impurities are found in the size larger than one andone-quarter inch. By our invention provision is made therefore forscreening the coal, for weighing the lump and slack coal together anddelivering them together to a bin or other receptacle, or for deliveringthe slack only to the bin and delivering the lump coal to the pickingtable, where it may be inspected by the miner or inspector,

The refuse that is pickedput may then be weighed to determine whatpercentage the impurities were of the total weightiof coal in the car.After the refuse has been picked out the coal may be delivered to thebin by reversing the direction, of movement of the picking table, saidtable being arranged in such proximity to the bin as to effect thisresult. If, however, all of the coal is con-= sidered bad it may bedischarged into a refuse chute from the picking table.

Specification of Letters Patent.

In the accompanying drawing Figure 1 1s a side elevation of our improvedapparatus shown inconnection with an ordinary ing' the cages when they.reach the dumping pointand the .mechanism illustrated is a common formwhich forms no part of my present invention. Said mechanism comprisesgenerally statedthe curved guide 6 adapted to receive the rollers '7 onthe cage, whereby the cage carrying the car is dumped the positionindicated by dotted lines A chute 8 is located in position to receivedelivers the coal to the weigh-hopper 9. This weigh-hopper 9 is dividedby the screen bars 10 into a to and bottom deck 11 and 12. Gates 13 an14 are provided for the upper and lower decks 11 and 12 respectively,said gates being opened and closed by means of the fluid-operatedcylinder '15. The piston-rod 16 is connected to the bellcrank 1'? 'and arod 18 connects said bellcrank to the gate'13. Bars 19 and 20 arepivoted to the gate 13 and to the hopper 5,, and a bar 21 ispivotallyconnected to the bar 20 and to the gate 14. By these connectiohs theoperation of the cylinder 15 acts to open and close the gates 13 and 14simultaneously. 1

lump coal" when Patented Aug; 12, 1919. Application filed march 5, 1919.Serial no. 280,864. r a

"tip-ple; Fig. 2 is a plan vview; Fig. 3'is an upper deck 11 of theweigh-hopper 9, and

said chute 25 is provided with the opening 26 in its bottom controlledby the fly-gate 27, hinged at 29. This gate 27 is opened and closed bythe fluid-operated cylinder 30, piston rod 31 of said cylinder beingconnected up by the arm 32 to said gate whereby said gate may be movedinto position to close the opening 26 or may be raised to the positionindicated in dotted line Fig. 3, where it is desired to discharge thecontents of the upper deck 11 into the chute 22.

The lower end of the chute 25 is also provided with a gate 33 hinged at34 and raisedand lowered by a cable 35. In this manner provision is madefor retaining the coal delivered to the chute 25 in said chute until itis desired to deliver it onto the pickingtable 24.

The picking-table 24 may be of any suitable construction, that shownbeing of a common type consisting of an-endless con veyer belt 24mounted on drums 24. Any suitable means may be provided for driving thebelt 25 and for reversing its direction of movement.

An operating platform 40' is provided for the operator from which he isable to control the cylinders 15 and 30 by means of the levers 41 and 42respectively.

The operation of our invention is as follows:

The cars of coal are hoisted onthe cages in the shaft and on reachingthe dumping point the cars are dumped and the contents delivered intothe weigh-hopper 9. The finer coal or slack will fall through the screenbars 10 onto the lower deck, while the larger or lump coal may remain inthe up-- per deck 11. The coal is then weighed. If the inspector fromhis position on the cage tenders platform sees that-the coal is free orcompartively free from refuse, he signals the operator who by means ofthe lever 41 operates the cylinder 15 and through the connectionsdescribed opens the gates 13 and l4,the gate 27 having been raised tothe position indicated in dotted lines Fig. 3. This permits the coalfrom both decks to pass into the chute 22 and into the bin 23.

If, however, the inspector believes that the coal in the upper deck 11contains too great a percentage of refuse he signals the operator whomoves the lever 42 and opcrates the cylinder 30 which lowers the gate 27to close the opening 26 in the chute 25. He then moves the lever 41 tooperate the cylinder 15 and the gates 13 and 14 are opened. The slackcoal in the lower deck 12 passes as before down into the bin but thelump coal is delivered into the chute 25 and is collected at the lowerend thereof. The picking-table 24 is then put in operation and the coalis delivered by lifting the gate 33 to the picking-table, a sufficientare of the total weight of coal in the car.

The cleaned coal on the picking-table 24 may then be delivered into thebin 23 by reversing the travel of the belt 24".

What we claim is:

1. In apparatus for cleaning coal, th combination of a weigh-hopper, ascreen dividing said hopper into an upper and lower deck, said upper andlower decks having discharge openings, gates controlling said openings,means for operating said gates, a common chute to receive the contentsof said upper and lower decks, a picking-table and means for divertingthe coal from the said upper deck to said picking-table.

2. In apparatus for cleaning coal, the

combination of a weigh-hopper, a screen outlets, means for operatingsaid gates, a'

chute in line with said upper deck, a com mon chute to receive the coalfrom said upper and lower decks, said first named chute having anopening communicating with said common chute, a gate for said opening,and a picking-table to receive the coal from said first named chute.

3. In apparatus for cleaning coal, the combination of a weigh-hopper, ascreen dividing said weigh-hopper into upper and lower decks, said deckshaving discharge openings, gates controlling said openings, a commonchute to receive the coal from said decks, a traveling picking-table,and means for diverting the coal from said upper deck onto saidpicking-table.

4. In apparatus for cleaning coal, the combination of a weigh-hopper, ascreen dividing said hopper into upperand lower decks, said decks havingdischarge outlets, gates controlling said outlets, a common chute toreceive the coal from said decks, a bin, a traveling picking-table, andmeans for diverting the coal from said upper deck to said pick1ng-table,said picking-table being in proximity to said bin whereby the ljcjoal onsaid table may be delivered to said 5. In apparatus for cleaning coal,the combination of a weighhopper, a screen dividing said hopper intoupper and lower decks, said decks having discharge outlets, a commonchute to receive the coal from said decks, a chute in line with saidupper deck, an opening in said chute communieating with said first namedchute, a gate LIAM J. PATTERSON and Ross M. BICKLEY controlhng saidopening, a travehng plckhave hereunto set our hands.

ing-table at the lower end ofsaid second WILLIAM J. PATTERSON. namedchute, and a gate controlling the ROSS M. BICKLEY.

5 flow of coal from said second named chute Witnesses:

to said picking-table. E. J. MASON,

In testimony whereof, We the said WIL4 CHAS. P. READ.

